3.6×1020
16
one
2
12
There is apporximately 0.07 mol of He in .268g, which is approximately 4.21x10^-23 atoms.
Cr2O72− ion has 9 atoms.
3 atoms NH3
Chlorophyll a has 137 atoms in the molecule.
16
They are often found at tectonic plate boundaries.
how many atoms are in this compound
2 Carbon atoms, 4 Hydrogen atoms, 2 Oxygen atoms
one
2
2 atoms of S + 10 atoms of F = 12 atoms total
3 oxygen atoms are found in one molecule of nitric acid.
There are four atoms. It contains N and H atoms.